[jira] [Created] (YARN-1179) add ApplicationConstants option to define base dir of the installed application

["Steve Loughran (JIRA)" <ji...@apache.org>]

Steve Loughran created YARN-1179:
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             Summary: add ApplicationConstants option to define base dir of the installed application
                 Key: YARN-1179
                 URL: https://issues.apache.org/jira/browse/YARN-1179
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: nodemanager
    Affects Versions: 2.1.0-beta
            Reporter: Steve Loughran


There is no expanded env variable for the directory into which the NM copies down local resources and executes the supplied command(s). This prevents you creating environment variables in the context that set absolute paths
{code}
env.put("CONF_DIR",absolute path to "/conf")
{code}

This could be determined by resolving "." to an absolute value in bash scripts, but it would be easier and safer if we just had an auto-expanding env variable

{code}
env.put("CONF_DIR","<INSTALL_DIR>/conf")
{code}

And of course {{INSTALL_DIR}} would be declared in {{ApplicationConstants}}.


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